Bridge Deck

Definition

A bridge deck is the slab or other structure that forms the travel surface of a bridge.

Purpose

The bridge deck serves as the surface on which vehicles and pedestrians travel. It distributes loads to the supporting structure of the bridge and ensures a smooth, safe passage over obstacles such as rivers, valleys, or roads. The design and material choice of the bridge deck are crucial for durability, load-bearing capacity, and resistance to environmental factors.

Examples of Use

1. Road Bridges: Bridge decks on highways support heavy traffic loads and must be durable and resistant to weathering.
2. Pedestrian Bridges: Lighter bridge decks designed for foot traffic, often incorporating aesthetic elements.
3. Railroad Bridges: Bridge decks constructed to support the weight and dynamic loads of trains.

Related Terms

• Superstructure: The part of the bridge above the piers and abutments, including the bridge deck.
• Substructure: The foundation and supports of the bridge that carry the loads from the superstructure to the ground.
• Deck Slab: A reinforced concrete slab forming part of the bridge deck.

Notes

Bridge decks must be regularly inspected for cracks, wear, and other signs of deterioration. Maintenance procedures, such as sealing cracks and resurfacing, are essential for extending the life of the bridge.